Finally, it's the summer break I've been waiting for! My parents are headed out on a trip with my cousin and his wife, and I'll be left all alone to do whatever I want!!

...or at least, that's how it was -supposed- to go...

When those 2 showed up, I couldn't help but sigh in disappointment.

They forced me to take care of the unpredictable Mayu and the predictable, but still annoying as hell Miyu.

[From DLsite English]